Pond
No, a lagoon is not a pond. A pond is a small body of water completely surrounded by land. A lagoon is a small body of water that is partially cut off from a larger body of water.
A pond or a lake or a puddle.
It is a bog.
A body of water such as you describe would be the ocean itself.
A bay is a body of water that is partially enclosed by land, whereas a peninsula is a piece of land that is surrounded by water on three sides. In other words, a bay is water surrounded by land, while a peninsula is land surrounded by water.
The Mediterranean Sea was the body of water completely surrounded by the Roman Empire.
Antarctica is surrounded by the Southern Ocean.
a medium size body of water surrounded by land is a sea or a huge lake.
A body of water almost completely surrounded by water is called an ocean. Oceans will often run into each other.
The term firth can be used to describe a small body of water extending into a landform (estuary is also used in this context).If this body of water is surrounded by mountainous land, the term fiord or fjord can be used if one wishes to be more precise.
The Mediterranean Sea was surrounded by the Roman Empire.
A body of fresh water surrounded by land is a lake or pond.